Hello all, For some reason, after moving from ALSA 1.0.15 to 1.0.16, my alsamixer does not display anymore the Mic Boost (+20dB) option for my digital microphone (of an Intel HDA ICH8), which is quite useful to enhance its capture volume in Ekiga, Skype etc. This annoying bug started me wondering if it is possible to simulate this mic boost using pulseaudio, which I use on top of ALSA. I was thinking about two possible solutions: 1) instructing pulseaudio to feed the output of the microphone capture source to some sort of amplitude multiplier module, which would become the default source. However, I don't know if there is such a module and how to plug it to the correct location.   2) forcing pulseaudio to accept a default source volume  >100%. I noticed that some channels allow me to choose up to 400% (e.g., the sink alsa_output.pci_8086_284b_sound_card_0_alsa_playback_0), but the one I assume the microphone uses (alsa_input.pci_8086_284b_sound_card_0_alsa_capture_0), for some reason, resumes its 100% position immediately after I choose something >100%. I don't know if this is the expected behavior, but it would be nice if I could force it to accept larger values in order to boost the volume of my digital mic, for instance, by changing some config file. Since I'm just starting using pulseaudio, I'm not sure if any of these solutions would be straighforward to configure, though they seem sensible to me. If someone in this list has been successful trying to do something similar, I'd would be very interested to hear! If not, the details on how to implement this idea might be an interesting topic to discuss here, since it could be used as a generic solution, using pulseaudio, to improve the  volume deficiencies in microphones of many people. Thanks in advance, HatX